i`ve had the 750k8 since the 19th of march and comparing it to the 750k7 i will say that the exhaust note is quieter but the engine feels very smooth with no jerkiness on throttle pick up,the midrange seems a little stronger and the front brake also has been upgraded with more feel and power at the lever.Suspension action is more plush as well but still firm and progressive,still very cold here though here in the uk.